Grow your home without it ever looking added-on.
New, tied to existing
A great addition reads as if it was always there. That takes structural know-how to tie new construction into the existing house, and a craftsman's eye to match rooflines, materials, and finishes seamlessly.
Bihn Construction manages additions and expansions end to end: from structural engineering and permitting to weatherproofing the connection and blending old to new so the seams disappear.
Second stories, primary-suite expansions, sunrooms, and bump-outs. Engineered to integrate, built to the same standard as the rest of the home.
The way we actually run it.
Every project moves through the same disciplined sequence. Nothing is improvised, and nothing is left to chance.
- 01
Structural Integration
New framing tied correctly into the existing structure. Engineered, not improvised.
- 02
Seamless Match
Rooflines, siding, and finishes blended so the addition reads as original.
- 03
Weather-Tight Connection
The old-to-new junction detailed and flashed to keep the whole envelope dry.
- 04
Minimal Disruption
Phased and protected so the existing home stays comfortable through construction.
Built with purpose: precision + partnership.
A disciplined four-phase process keeps every project aligned, from first site visit to final walkthrough. And our commitment does not stop there.
Predesign
Preconstruction
Construction
Post-Construction
Selected work.
Lakeside Modern Residence
Upstate Lake Country, SC
Chef's Kitchen Renovation
Greenville County, SC
Open Great Room
Greer, SCAdditions & Expansions, answered.
Grow your home without it ever looking added-on. Bihn Construction runs additions & expansions with disciplined planning, transparent budgets, and a single point of accountability from first conversation to final walkthrough.
Yes. Bihn Construction is a licensed South Carolina general contractor, bonded and fully insured on every project, with a single point of accountability from preconstruction through closeout.
Budgets are locked early and tracked openly, subcontractors are prequalified, and the schedule is maintained and reported, so there are no surprises at the end.
Greenville and the wider Upstate of South Carolina, from our office in Mauldin.
Start your additions & expansions project.
Grow your home without it ever looking added-on. Tell us about your project, timeline, and budget. We'll bring one point of accountability from first sketch through final walkthrough. Most consultations are scheduled within 48 hours.